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STNI

STNISea-Tac Noise.Info

  • Solve for Sea-Tac. Solve for every airport.
  • Since 2016, working to obtain justice for everyone living under the flight path.
  • Less Noise. Cleaner Air. Better Public Health. Compensation.
  • Everything you think you know about the airport is wrong.

TagConstruction(144)

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  • Sea-Tac Airport Aerial View During Terminal Expansion Construction

    Aerial photograph showing Seattle-Tacoma International Airport (Sea-Tac) during a major construction/expansion phase, with the existing terminal complex and aircraft gates visible in the background and large-scale earthwork and new terminal foundation construction underway in the foreground. Multiple commercial jet aircraft are visible at gates, and the surrounding roadway infrastructure and parking areas are partially complete, consistent with Sea-Tac's expansion construction in the late 1960s to early 1970s.
    TagsAirport Expansion, Construction, History, Runways, Sea-Tac AirportFolderRunways
  • Sea-Tac Airport Aerial View During Terminal Expansion Construction

    Black-and-white aerial photograph showing a large airport terminal complex with a distinctive circular roadway/structure under active construction in the foreground. Jet aircraft are visible at gates in the background, and large parking lots and excavation work are visible, suggesting a significant expansion or renovation project.
    TagsAirport Expansion, Construction, Runways, Sea-Tac AirportFolderRunways
  • 2022-09-12

    Pedestrian Crosswalk With Warning Signage Near Landscaped Roadway

    A newly constructed or recently improved roadway intersection featuring marked crosswalks, pedestrian warning signs (yellow diamond), decorative street lamps with dark blue poles, and a blue informational sign in the background. The infrastructure appears modern, with concrete curb ramps and ornamental landscaping consistent with a planned commercial or transit-oriented development area.
    TagsConstruction, Des MoinesFolderDes Moines
  • Sea-Tac Airport Vicinity Map With Phase 1 Construction and Port Sites

    Aerial map of Seattle-Tacoma International Airport identifying labeled construction and port sites (P-1 through P-6, including P-3a and P-3b) with Phase 1 Construction Sites outlined in yellow and Port Sites P-4 and P-5 outlined in red. The map shows three parallel runways (16R-34L, 16C-34C, 16L-34R), surrounding roads including Highway 509, Highway 518, and Pacific Highway, and the Port Property Boundary marked with a dashed white line.
    TagsConstruction, Map, Port Of Seattle, Runways, Sea-Tac AirportFolderRunways
  • 2022-08-07

    Port Package Problems Example: Rotted Wood Framing At Building Base

    Close-up photograph of Port Package problem 0812: Severely deteriorated and rotted wood framing or sill plate at the base of a structure. The wood exhibits extensive decay with fragmented, crumbling pieces scattered around the affected area. PVC pipe and painted wood trim elements are also visible in the image.
    TagsConstruction, History, Port Packages, Sea-Tac Airport, soil, Sound InsulationFolderPort Packages
  • 2021-10-20

    SKM Construction Inc. Business Card — Sheila K. Morrison, President

    Business card for SKM Construction Inc., a general contractor operating since 1991, held by President Sheila K. Morrison. The company is located at 14415 SE 143rd Pl, Renton, WA 98059, with license number SKMCOI*052L3 and office/fax number (425) 235-5569.
    TagsConstruction, Port Packages, Sea-Tac AirportFolderPort Packages
  • 2021-05-13

    Environmental checklist: Seattle-Tacoma International Airport (SEA) Widen Arrivals Drive

    The Port of Seattle filed an environmental checklist in May 2021 for a project to widen Arrivals Drive at Seattle-Tacoma International Airport (SEA) from two lanes to four lanes, aiming to reduce congestion and improve safety for passengers and ground transportation vehicles. Construction was planned to begin in mid-2023 and last approximately 18 months, involving road realignments, updated stormwater drainage, new LED lighting, and utility relocations. The project was designed as a standalone improvement but coordinated with broader airport master plan efforts to accommodate potential future infrastructure expansions at SEA.
    TagsConstruction, Port Of Seattle, SAMP, Sea-Tac Airport, SEPAFolderEnvironment
  • 2021-01-22

    Lora Lake Apartments site construction as-built report

    This January 2021 report documents the as-built construction details of the Lora Lake Apartments Site, a project managed by the Port of Seattle's Aviation Environmental Programs at Seattle-Tacoma International Airport. Prepared by engineering firm Floyd|Snider, it captures the completed state of construction work at the site, which is located near the airport and subject to aviation noise considerations. The report was prepared under the supervision of licensed Professional Engineer Megan King and is intended for use by the Port of Seattle and relevant regulatory agencies.
    TagsConstruction, Environment, Lora Lake, Port Of Seattle, Sea-Tac AirportFolderSea-Tac Airport
  • 2020-09-29

    Port Package Installation – Door Replacement in Progress (September 2020)

    TagsConstruction, Port Packages, Sea-Tac Airport, Sound InsulationFolderPort Packages
  • 2020-09-29

    Residential Construction Framing With Husky Ladder

    A home renovation or addition project showing wood stud wall framing being constructed against an existing single-story residence. A yellow Husky-brand step ladder is visible on the right side, along with construction debris and tools scattered around the work area.
    TagsConstruction, Housing, Port Packages, Sound InsulationFolderPort Packages

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Upcoming Events

  • Stay Grounded Event: Night trains, not night planes!
    Add to CalendarMSunday Sep 13: 12:00am
    Ntnnp social media3

    For the past two years, more than 220 initiatives from 15 countries have declared September 13th as the International day for the ban of night flights at airports. In parallel, activists across Europe have been gathering for pyjama parties for night trains – coordinated in 2024 and 2025 by Back on Track and Stay Grounded.

    [...]
  • Burien Airport Committee Meeting September 15, 2026
    Add to CalendarMTuesday Sep 15: 6:00pm
    400 SW 152nd St, Burien, WA 98166
    Burien airport committee 15 sep 2026 agenda pdf pdf

    a) Part 150 Noise Study (Emily Inlow-Hood) — 15 minutes
    b) SAMP Update and Next Steps (Brian Davis and Sarah Moore) — 15 minutes
    c) Legislative Updates — 10 minutes
       • SCA (Sarah Moore)
       • Work with Sen. Orwall (Brian Davis)
    d) StART Reorganization (Jeff Harbaugh and Karen Veloria) — 10 minutes

    [...]

[See all...]


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Issues

Sea-Tac Airport is currently undergoing the largest and longest expansion in its history, collectively known as the Sustainable Airport Master Plan (SAMP). Some of it you can already hear, but you’re probably not aware of what it all means. Here’s what you need to know.
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Read This!

As the source for federal transportation grants, the Puget Sound Regional Council was charged with developing a system to meet the growing need for commercial aviation. When the search for a second airport failed, they authorized the Port of Seattle to build the Third Runway, with a mandate to develop a noise abatement and mitigation program. In their effort to stop the Third Runway, the ACC argued over every detail of the Port's efforts--including property buyouts and sound insulation. The dispute was meant to be settled by a three member Expert Arbitration Panel. This is their final report. It finds 2-1, that the Port's program was insufficient in several respects. Despite that, funding for the Third Runway was approved by the PSRC, and the 'Port Package' program, proceeded largely unchanged. Expert Arbitration Panel's final decision finding that the Port of Seattle had not shown sufficient reduction in real on-the-ground noise impacts to satisfy noise reduction conditions required for approval of a third runway at Sea-Tac International Airport. The majority decision concluded the Port's noise abatement programs were insufficient despite being impressive in scope.
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